Water bottle cap



FIG. 1 is top-side perspective view of a water bottle cap design;

FIG. 2 is a front view of the water bottle cap;

FIG. 3 is a rear view of the water bottle cap;

FIG. 4 is a side view of the water bottle cap;

FIG. 5 is another side view of the water bottle cap;

FIG. 6 is a top view of the water bottle cap; and,

FIG. 7 is a bottom view of the water bottle cap.

In the drawings, the broken lines show portions of a water bottle cap that form no part of the claim. 

CLAIM I claim the ornamental design for a water bottle cap, as shown and described. 